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What causes autism spectrum disorder (ASD)?

Doctors don't know what causes autism spectrum disorder (ASD), but they are working hard to find out. What they do know is that ASD often runs in families, so a person is more likely to have ASD if a close family member also has it.

About one in 166 children are affected by autism, and it occurs in boys 3 to 4 more times often than girls. However, this complex developmental disorder affects people to varying degrees. The cause is unknown, but genetic and environmental factors play a role. It is the result of abnormal development of certain parts of the brain.

From Good Kids, Bad Habits: The RealAge Guide to Raising Healthy Children by Jennifer Trachtenberg.

 

Good Kids, Bad Habits: The RealAge Guide to Raising Healthy Children

More About this Book

Good Kids, Bad Habits: The RealAge Guide to Raising Healthy Children

When kids start going on TV binges or devouring fistfuls of cookies, it's easy to say, "They'll grow out of it." More likely, they're acquiring bad habits that could lead to childhood obesity and...

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.